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一只可爱的猪 · 2022年07月05日

为什么是B,mean reverting不是等于non-trending吗

Michelle Wong is a portfolio manager at Star Wealth Management (SWM), an investment management company whose clients are high-net-worth individuals. Her expertise is in identifying temporarily mispriced equity securities. Wong’s typical day includes meeting with clients, conducting industry and company investment analysis, and preparing trade recommendations.

Music Plus

Wong follows the music industry and, specifically, Music Plus. After highly anticipated data about the music industry is released shortly after the market opens for trading, the share price of Music Plus quickly increases to $15.25. Wong evaluates the new data as it relates to Music Plus and concludes that the share price increase is an overreaction. She expects the price to quickly revert back to her revised fair value estimate of $14.20 within the same day. When the price is $15.22, she decides to prepare a large sell order equal to approximately 20% of the expected daily volume. She is concerned about information leakage from a public limit order. Wong’s supervisor suggests using algorithmic trading for the sell order of the Music Plus shares.


West Commerce


Later the same day, West Commerce announces exciting new initiatives resulting in a substantial increase in its share price to $27.10. Based on this price, Wong concludes that the stock is overvalued and sets a limit price of $26.20 for a sell order of 10,000 shares. By the time the order is released to the market, the share price is $26.90. The share price closes the day at $26.00. SWM is charged a commission of $0.03 per share and no other fees. Selected data about the trade execution are presented in Exhibit 1.




The value of the market index appropriate to West Commerce was 600 when the West Commerce sell order was released to the market, and its volume-weighted average price (VWAP) was 590 during the trade horizon. West Commerce has a beta of 0.9 with the index.

Trading Policies

At the end of the day, Wong meets with a long-term client of SWM to discuss SWM’s trade policies. The client identifies two of SWM’s trade policies and asks Wong whether these are consistent with good trade governance:

Policy 1 SWM works only with pre-approved brokers and execution venues, and the list is reviewed and updated regularly.

Policy 2 SWM is allowed to pool funds when appropriate, and executed orders are allocated to the accounts on a pro-rata basis.

The most appropriate price benchmark for the sell order of Music Plus shares is the:

A closing price.

B decision price.

C time-weighted average price (TWAP).

答案B

为什么是B,文章中哪个表述推断出B?这里revert to 14.2,mean reverting不是等于non-trending吗

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吴昊_品职助教 · 2022年07月25日

嗨,努力学习的PZer你好:


没有这个说法哦。

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就算太阳没有迎着我们而来,我们正在朝着它而去,加油!

吴昊_品职助教 · 2022年07月25日

嗨,从没放弃的小努力你好:


我们在trading这门课中没有提到过mean-reverting是non-trending这种说法。判断trending/non-trending就是看能否预测价格趋势。

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虽然现在很辛苦,但努力过的感觉真的很好,加油!

吴昊_品职助教 · 2022年07月22日

嗨,努力学习的PZer你好:


1、overreaction是指因为听到一些风吹草动就过度反应,不是指价格overvalued。

2、trending就是指市场上价格有趋势,non-trending就是指市场上价格没有趋势。

市场有趋势,比如市场上的价格在未来一段时间内有连续上涨或者连续下跌的趋势,投资者可以预期未来价格走势。

反之,若市场没有趋势,就是指无法预测未来价格走势。

既然都预期到要reverting了,如何得出non-trending的?并且,这道题不是从trending/non-trending来思考判断的。

3、When the price is $15.22, she decides to prepare a large sell order equal to approximately 20% of the expected daily volume. 这就意味着是大单。

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虽然现在很辛苦,但努力过的感觉真的很好,加油!

吴昊_品职助教 · 2022年07月05日

嗨,爱思考的PZer你好:


订单特点:快、大、并且希望避免信息泄露。

TWAP是大单拆小慢慢交易,不符合交易紧急这个特点。所以不能选C。

同学可以回听一下李老师对于这道课后题的讲解。

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努力的时光都是限量版,加油!

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